| Methodology: |
Enzymatic
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| Performed: |
Sun-Sat
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| Reported: |
Within 24 hours
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| Specimen Required: |
Collect: 24-hour or timed urine collection. Specimen must be refrigerated during collection.
Transport: 10 mL aliquot from a well-mixed 24-hour or timed collection at 2-8°C. (Min: 0.5 mL) Submit specimen in an ARUP Standard Transport Tube.
Pediatric Collection/Transport: 0.5 mL aliquot from a well-mixed 24-hour or timed collection at 2-8°C.
Remarks: If pH is < 6, adjust pH to greater than or equal to 6 by adding 5% NaOH (approximately 2 mL per liter). Mix well. Amylase is not stable in acidified samples (pH < 6) and decreases of up to 30% may occur. Record total volume and collection time interval on transport tube and test request form.
Unacceptable Conditions: Frozen specimens. Specimens containing acetic acid, boric acid (sodium formate), concentrated HCl, or urine preservatives containing hexamethylenetetramine or mercuric acid.
Stability: Ambient: 1 week; Refrigerated: 1 month; Frozen: Unacceptable
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